Remove various things which were checking for gcc-1.x and gcc-2.x compilers.

From: Adrian Bunk <[email protected]>

    Some documentation updates and removes some code paths for gcc < 3.2.

Acked-by: Russell King <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>